If a patient has an obvious bone protruding from behind the ear, it is recommended to register with the ENT department. Sometimes it is because the patient’s papillae are more obvious, which is a normal condition and does not require active treatment, and the doctor can diagnose it by palpation. If, after palpation, the bone behind the ear is painful, inflammation is often considered to have formed, and the swelling of the lymph nodes behind the ear is considered to have formed a nodule or papillitis. It is recommended to improve the diagnosis by ultrasound or CT of the middle ear papillae behind the ear. After the diagnosis is confirmed, active anti-inflammatory treatment can be considered by applying topical compound polymyxin B ointment and compound ketoconazole cream behind the ear, and the patient’s condition will be improved after one week of active treatment.